For me it’s the paranoia surrounding webcams. People outright refuse to own one and I understand, until they go on and on about how they’re being spied. Here’s the secret - unplug the damn thing when you think you won’t use it or haven’t used it in a while.
They, whoever it is, can’t really spy on you on something that’s already off and unplugged!
https://youtu.be/yy0xmcBg_IY
Great review of several high end mice, wired and wireless. He found no correlation between wires and latency. Ultimately, he concludes that the most important properties of the mouse are weight and feel.